Phase Data

Explanation of Parameters


     18 APR 2013  (108)

     ot  = 03:42:50.06   +/-   0.82              IZU ISLANDS, JAPAN REGION       
     lat =      31.726   +/-   10.9
     lon =     140.288   +/-   12.8              MAGNITUDE 4.6 (GS)       
     dep =        74.5   +/-    7.7   

     161 km (100 miles) SSE of Hachijo-jima, Izu Islands, Japan
     397 km (246 miles) SSE of Numazu, Honshu, Japan
     401 km (249 miles) SSE of Shizuoka, Honshu, Japan
     442 km (274 miles) S of TOKYO, Japan

     nph =   63 of  93    se = 0.40    FE=211                            A   

     error ellipse = (108.0,  9.0, 19.9;200.0, 14.0, 16.6;346.0, 73.0, 11.0)

 mb = 4.6 (  1)  ML = 0.0 (  0)  mblg = 0.0 (  0)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 JHJ2 ePn     03:43:14.48   0.1    1.4 344                                   JHJ2
      eSn     03:43:32.24  S res =  -0.5 
 INU  ePn     03:43:59.86   3.8    4.5 324                                   INU 
 MJB9 ePn     03:44:08.55   4.4    5.1 341                                   MJB9
 MAJO ePn     03:44:08.54   4.4    5.1 341                                   MAJO
 JNU  ePn     03:44:50.17   5.5    8.1 282                                   JNU 
 ERM  ePn     03:45:14.68  -3.2   10.5  12                                   ERM 
      eSn     03:47:12.11  S res =  -1.9X
 JOW  ePn     03:45:32.32   0.1   11.6 248                                   JOW 
 KS01 ePn     03:45:41.18   7.1X  11.7 303                                   KS01
 KS15 ePn     03:45:41.73   7.2X  11.7 303                                   KS15
 YSS  ePn     03:46:21.23  -0.8   15.3   6 b:2.7+1 .70 4.6                   YSS 
 YHNB eP      03:46:50.73  -5.1X  18.1 252 b:4.5+1 .80 4.8                   YHNB
 NACB eP      03:46:54.40  -1.9X  18.1 250 b:6.5+1 1.1 4.8                   NACB
 GUMO eP      03:47:00.68  -0.1   18.5 166 b:1.7+2 1.4 5.1                   GUMO
 YULB eP      03:47:03.10   0.0   18.8 249 b:2.5+1 .90 4.4                   YULB
 SSLB eP      03:47:03.27  -0.7   18.8 250 b:3.3+1 .90 4.6                   SSLB
 TWG  eP      03:47:05.52  -2.7X  19.2 247 b:7.5+1 .80 5.0                   TWG 
 TPUB eP      03:47:10.35   0.9X  19.3 249 b:4.3+1 1.1 4.6                   TPUB
 XAN  eP      03:48:17.51  -2.1   26.4 284 b:1.4+1 .80 4.6                   XAN 
 ENH  eP      03:48:19.98   0.4   26.4 275 b:1.7+1 .55 4.8                   ENH 
 ULN  eP      03:48:50.84  -0.1   29.9 312 b:3.7+0 1.2 4.0                   ULN 
 QIZ  eP      03:48:53.48   0.3   30.2 253 b:3.0+1 1.4 4.8                   QIZ 
 ZALV eP      03:50:57.26  -0.2   45.0 317                                   ZALV
      ePcP    03:52:37.27  -0.3X
 ZAA0 eP      03:50:57.80   0.3   45.0 317 b:3.3+0 1.1 4.1                   ZAA0
      ePcP    03:52:38.27   0.7X
 MAKZ eP      03:51:09.90  -0.3   46.5 306 b:7.9+0 1.4 4.4                   MAKZ
 ANM  eP      03:51:11.09   0.4   46.6  29 b:5.0+0 1.0 4.4                   ANM 
 KURK eP      03:51:25.96  -0.2   48.6 312 b:5.6+0 .85 4.6                   KURK
 GSI  eP      03:51:39.81  -0.1   50.4 242 b:2.3+1 1.0 5.2                   GSI 
 WB2  eP      03:51:48.32  -1.3   51.7 187                                   WB2 
 SPU  ee      03:51:57.02   0.0X  52.1  35                                   SPU 
      epP     03:52:08.43  depth =  -1.5X
 RND  eP      03:52:03.34  -0.2   53.6  32                                   RND 
      epP     03:52:23.14  depth =   1.7X
 TOLK eP      03:52:03.79   0.3   53.6  25 b:6.9+0 1.1 4.6                   TOLK
 MDM  eP      03:52:06.11   0.4   53.9  30 b:1.8+1 1.6 4.8                   MDM 
 IL1  eP      03:52:08.51  -1.3X  54.5  30                                   IL1 
 HDA  eP      03:52:09.16  -0.5   54.5  31 b:1.3+1 1.5 4.7                   HDA 
 ILB  eP      03:52:09.18  -0.6   54.5  30 b:4.4+0 1.1 4.4                   ILB 
 KKAR eP      03:52:14.63   0.1   55.1 303 b:1.0+1 1.4 4.7                   KKAR
 SCRK eP      03:52:18.93  -0.3   55.8  31 b:7.6+0 1.2 4.6                   SCRK
 PMR  epP     03:52:21.74   1.3X  53.5  34                                   PMR 
 EPYK eP      03:52:39.66   0.7   58.6  28 b:9.9+0 .85 5.0                   EPYK
 INK  eP      03:52:45.14  -0.2   59.5  25 b:3.7+0 .60 4.7                   INK 
 ARU  eP      03:52:47.22   0.1   59.8 321 b:7.4+0 .90 4.8                   ARU 
 PSI  ePcP    03:52:51.26   0.6X  48.5 242                                   PSI 
 ABKAReP      03:52:53.13  -0.6   60.7 312 b:2.7+0 .90 4.4                   ABKA
 RES  eP      03:53:40.25  -0.3   68.0  14 b:5.2+0 .75 4.6                   RES 
      eS      04:02:30.67  S res =  -2.6X
 YKW3 eP      03:53:44.95  -1.3X  68.8  29 b:4.6+0 1.2 4.3                   YKW3
 YKB5 eP      03:53:45.84  -0.6   68.9  29                                   YKB5
 TULEGeP      03:53:55.85  -0.2   70.5   7 b:6.2+0 .70 4.7                   TULE
 FIA1 eP      03:54:11.11  -0.8   73.1 333                                   FIA1
 PINE eP      03:54:22.06   1.1   74.5  48 b:8.2+0 1.0 4.6                   PINE
 AK11 eP      03:54:39.79  -0.3   78.0 323                                   AK11
 AKBB eP      03:54:39.82   0.0   77.9 323 b:9.7+0 .90 4.7                   AKBB
 KIEV eP      03:54:39.88   0.1   77.9 323 b:8.5+0 .80 4.7                   KIEV
 NC405eP      03:54:42.92   0.1   78.5 337 b:2.0+1 1.4 4.8                   NC40
 HRY  eP      03:54:43.43   0.3   78.5  42                                   HRY 
 NC204eP      03:54:43.97   0.1   78.7 338 b:1.9+1 1.0 5.0                   NC20
 LRM  eP      03:54:44.58   3.5   78.1  42                                   LRM 
 NV01 eP      03:54:46.06   0.0   79.0  52                                   NV01
      epP     03:55:06.17  depth =   1.2X
 FFC  eP      03:54:47.61   3.7X  78.7  32 b:8.2+0 1.3 4.5                   FFC 
 WVOR epP     03:54:49.62  -2.4X  76.7  48                                   WVOR
 ORV  epP     03:54:51.29   1.6X  76.2  52                                   ORV 
 H17A eP      03:54:54.00  -0.5   80.5  43 b:7.1+0 1.2 4.5                   H17A
 SCO  epP     03:54:56.14   0.9X  77.3 354                                   SCO 
 DUG  eP      03:54:59.93   0.0   81.6  48                                   DUG 
      epP     03:55:21.52  depth =   2.5X
 BR131eP      03:55:00.22  -0.3   81.7 312 b:9.3+0 .85 4.7                   BR13
 BUR08eP      03:55:01.17  -0.2   81.9 322 b:3.4+0 .80 4.3                   BUR0
 KWP  eP      03:55:01.89   0.6   81.9 325 b:1.7+2 .90 6.0                   KWP 
 OJC  eP      03:55:05.61  -1.0   82.9 326 b:1.3+1 1.0 4.8                   OJC 
 SRU  eP      03:55:10.95   0.2   83.6  48 b:4.7+0 .86 4.5                   SRU 
 MORC eP      03:55:13.68   0.0   84.3 327 b:1.0+1 1.4 4.7                   MORC
 PSZ  eP      03:55:14.66   0.2   84.4 324 b:8.1+0 1.0 4.7                   PSZ 
 CSS  eP      03:55:15.64   0.2   84.6 308 b:1.8+1 .90 5.1                   CSS 
 R11A epP     03:55:17.22   2.2X  80.8  51                                   R11A
 FXWY epP     03:55:17.71   3.4X  80.7  44                                   FXWY
 CLL  eP      03:55:18.25   0.0   85.2 330 b:1.3+1 1.2 4.8                   CLL 
 GEA0 eP      03:55:24.85  -1.0   86.7 328                                   GEA0
 KNB  epP     03:55:31.89   3.4X  83.4  50                                   KNB 
 FUORNeP      03:55:40.97  -0.3   89.9 328 b:1.1+1 1.1 5.0                   FUOR
 ITM  eP      03:55:42.00  -1.8X  90.5 316 b:1.2+1 .72 5.3                   ITM 
 MSTX eP      03:55:49.18  -0.5   91.7  48 b:1.5+1 1.0 5.3                   MSTX
 LENM epP     03:55:55.30  -0.6X  88.9  50                                   LENM
 LAZ  epP     03:55:56.30   0.7X  88.8  50                                   LAZ 
 TX31 eP      03:56:00.79   0.0   94.1  52 b:6.6+0 1.3 4.9                   TX31
      eP      03:56:01.23   0.5 
 LPAZ ePKPbc  04:02:34.09   0.9X 149.9  65                                   LPAZ



 Generated 2013 APR 18 at 05:10 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver